Folding box



'June 23, 1931. w, p, FRANKENSTIN 1,810,956

' FOLDING BOX Filed Aug. 22, 1930 Patented June 23, 1931 UNITED; STATESmam OFFICE WILLIAM P. FRANKENSTEIN, OF CINCINNATI, OHIO FOLDING BOXApplication filed August 22, 1930. 'Serial No. 477,056.

fied blank and folding operations, with an accompanying security andprotection to the goods as is not attained in other box constructionsknown to me.

These and other objects are attained in the box described in thefollowing specification and illustrated in the accompanying drawings inwhich:

Fig. 1 is a perspective view of a box blank embodying my invention,partially folded.

Fig. 2 is a perspective View of a box constructed of a blank such asshown in Fig. 1.

Fig. 3 is a fragmental perspective view of a detail of my invention,disclosing a slight difference from the corresponding detail shown inFig. 1.

'A blank such as embodies my invention consists of a bottom 4, a top 5,lugs 5 attached to the ,end edges of top 5, a side 6 which joins the topand bottom, an opposite inner side 7 which is attached to the oppositeedge of the bottom 4, an outer side 8 which is attached to top 5, aclosure flap 9 which is attached to outer side 8, ends 10 and 11 whichare attached to bottom 4:, top flaps 12 and 13 which are attached toends 10 and 11 respectively, tongues 15, 16, 17, and 18 which areattached to the opposite ends of inner side 7 and ends 10 and 11respectively, a collapsible support 19 which is attached to side 7 andsnap fastener members 20 and 21 on the bottom 4 and closure flap 9respectively.

As shown, the tongues 15 and 18 are folded inwardly to be engaged byends 10 and 11, while tongues 16 and 17 are folded inwardly to beengaged by side 6, the edges of all the tongues resting on the bottom 4,when the side 7 and ends 10 and 11 are folded at right angles to thebottom 4.

Sides 6 and 7, and ends 10 and 11 when folded to position as above,permit tops flaps 12 and 13 to be folded to lie parallel with the bottomand to lie against top 5 when it is folded into engagement therewith,lugs. 5 being folded at right angles to the top 5 and caused to enterslots 10between the flaps 12, 13 and their respective attached ends 10and 11. In this condition the outer side 8 is folded to lie againstinner side 7 so that closure flap 9 may be folded to engage bottom 4;

The folded top, bottom, sides, ends,

tongues and flaps ofthe box are now ready for fastening in closed orcompletely folded condition. This is accomplished by the fastenerelements 20 and 21 being brought to attached condition, but, because ofthe more or less easily bent material of which the box is made, therehas to be provided a foldable but nevertheless spring-like support 19which normally stands expanded as shown and forms a rigid abutment forthe flap 9 and bottom 4: to press against top 5 so that the two elementsof fastener 2O21 may be snapped together by pressure of the fingers onthe top and bottom of the box.

The entrance of lugs 5 into slots 10 when the box is brought tocompletely folded condition, performs the function of preventing theflaps and ends from being pushed inward and permitting pressure tocollapse the opposite faces of the box. V

Fig. 1 shows one form of support 19, but, it is obvious that this iscapable of modification without alteration of the function of thesupport. Hence, if the supportbe made in the form shown in Fig. 3, thisalso being collapsible, the function of holding the bot tom and topapart while the fingers are being pressed on the fastener member 21 andoposite face of the top to permit snapping of the fastener, is asreadily performed.

Having thus described my invention what I claim is: v

A folding box comprising a top, a bottom, ends, sides and closure flapsformed integrally from a blank of sheet material, members of a snapfastener in the flap and bottom, and means between the top and bottom,

forming a part of the box and constituting a support permitting pressureon the fastener member of the flap and the box top to lock the boxclosed by snapping the fastener element together. 7

In Witness whereof, I aifix my signature.

WILLIAM P. FRANKENSTEIN.

